Method and apparatus for applying slip



Sept. 8, 1925. 1,552,556

R. J. GREENE METHOD AND APPARATUS FOR APPLYING SLIP Filed May 28, 1924 2 Sheets-Sheet l l/ u f 1 M3 L}, P???- I J v i r 311 'um 14' 01 I fi /zwza d 671 6110.

R. J. GREENE METHOD AND APPARATUS FOR APPLYING SLIP Sept 8, 1925.

Filed May 28 2 Sheets-Sheet 2 E I 4 5 \V \V W llllllllillll. n m fl I Ill 0 0 Q Q- x v ,1 wlllblllPlilvlli I llllllllllll. w "f T 6 l lmllll 5 v a 5 O Patented Sept. 8, 1925..

warren srras RAYMOND J. GREENE, OF SEEKING, OHIO.

METHOD AND APPARATUS FOR APPLYING SLIP.

Application filed M y as, 1924. Serial No. 716,383.

To all whom it mag concern:

Be it known that I, RAYMOND J. GREENE, a citizen of the United States, residing at Sebring, in the county of Mahoning and State of Ohio, have invented a certain new and useful Improved Method and Apparatus for Applying Slip, of which the following is a specification.

The invention relates to the manufacture of incandescent gas mantles, commonly known as radiants for use upon radiant gas heaters, and has more particular reference to a method and apparatus for applying slip to the adjoining faces of the two halves which compose each radiant.

These radiants are formed of two parts which are stuck together while green with a solution commonly referred to in the potteries as slip, the radiantthen being placed in a kiln and fired, forming an integral, hollow mantle.

In the pottery industry, this slip is commonly applied to the adjoining faces of the two halves of each radiant, by means of a brush, which requires considerable time, as it is necessary for the operator to pick up the brush, dip the same into the slip and paint the adjoining faces of the two halves of the radiant with slip, after which the brush must be laid down and the two halves of the radiant picked up and pressed together.

The objects of the present invention are to provide a method and apparatus by means of which the slip is quickly and easily applied simultaneously to the adjoining faces of both halves of the radiant, the halves being held in such a position by the operator that they are easily and quickly pressed together as the slip is placed thereon.

The above and other objects may be attained by providing an apparatus such as illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of an apparatus embodying the invention;

Fig. 2, a section through the same on the line 2-2, Fig. 1;

Fig. 3, an enlarged detail section in the plane of Fig. 2:

Fig. 4, a similar View in the plane of Fig. 1; and

Fig. 5, a plan section. on the line 5-5, Fig. 4.

Similar numerals refer to similar parts throughout the drawings.

The apparatus may be mounted upon a table or bench 1, supported at the corners as by the legs 2 and having the tank 3 suspended through the opening 4 in the table. Guides 5 are provided within the tank, the blade 6 being mounted for vertical reciprocation therein.

This blade is connected at one upper corner to the depending end of the inverted U-shaped portion 7 of the rod 8, slidably mounted in a guide 9 provided in the table.

The lower end of the rod 8 is connected to the upper extremity'of a series of lazy tongs 10 pivotally connected to a stationary 1 cross bar 11, the lower end of said lazy tongs being connected to the treadle 12 near the free end thereof, the opposite extremity of said treadle being hinged as at 13.

A counterweight 14, or a spring or the like, may be provided for normally holding the treadle in raised position, thus contracting the lazy tongs 10 and holding the blade 6 in the tank 3, which is filled with slip. This slip is a very thin solution of the clay of which the radiants are formed, having about the consistency of milk.

In operating the apparatus to place the slip upon the articles, the front and back halves, 15 and 16 respectively, of the radiant are held one in each hand and the treadle 12 is depressed, raising the blade 6 out of the tank, the two halves of the radiant being held against the opposite faces of the blade, as best shown in Fig. 4.

The blade, of course, is coated upon both sides with the slip as it emerges from the tank, and as the ,foot is removed from the treadle, the blade is caused to slide between the members 15 and 16, back into the tank, smearing a coating of the slip upon the adjoining edges of the two halves of the radiant.

As the blade is thus moved out of engagement with the halves of the radiant, the same may be pressed together, the slip causing the two halves to adhere to each other. The radiant is then in condition to be placed in the kiln and fired.

From the above, it will be seen that the operation of applying the slip and attaching the halves of the radiant together, preparatory to firing, is considerably simplified and shortened in time, permitting the 'T' operator to handle the halves of the radi- 1. The improved methodof applying slip:

to adjoining surfaces of a two part clay structure, Which consists in placing th ad joining surfaces against opposite faces of a slip coated blade and sliding the blade from between said surfaces.

2. An apparatus of the character described, including a tank, a guide rod, a series of lazy tongs connected' to the guide rod, a treadle connected to the lazy tongs,

ablade'connected t0 the guide rod and extendinginto thetanln and means for normally holding the treadle in raised position.

In testimony that If claim the above, 1 have hereunto subscribed my name.

RAYMOND J. GREENE. 

